1542136927 has 2 divisors, whose sum is σ = 1542136928. Its totient is φ = 1542136926.

The previous prime is 1542136879. The next prime is 1542136931. The reversal of 1542136927 is 7296312451.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7296312451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1542136927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1542136927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542130927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771068463 + 771068464.

It is an arithmetic number, because the mean of its divisors is an integer number (771068464).

Almost surely, 2^1542136927 is an apocalyptic number.

1542136927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542136927 is an equidigital number, since it uses as much as digits as its factorization.

1542136927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 1542136927 is about 39270.0512732031. The cubic root of 1542136927 is about 1155.3342428262.

The spelling of 1542136927 in words is "one billion, five hundred forty-two million, one hundred thirty-six thousand, nine hundred twenty-seven".